Sell quality turntable to buy top CD player?

Thank you to those who have responded so far. The comments and advice are helpful and provide me with alternatives

To Mgattmch, without sounding like a yokel, I have never warmed up to computer audio because it requires more accessories. In addition, somewhere along the line, more computer music servers will be charging large fees for the service. I also want to keep the system simple

To Metralla, several members have recommended the Sony 5400; however a major caveat is:.... it may not sound that much better than the Rega Apollo. Therefore, I am looking to make a major jump in sound quality.

I believe I have the speaker in the Acoustic Zen Adagios that can reproduce the jump in quality of CD playback through a modded player, or an outstanding player that is ahead of the pack

My amp is a Rogue "Sphinx" integrated of 100RMS. So far, the Rogue Sphinx has been surprisingly better than what I anticipated. And, unless I am wrong, should not subtract from sound quality provided by a legitimate high end CD player.

Another related question is:.... how much better, or how big a jump in sound quality will the Modwright upgrades of the Sony XA 5400 produce?? Would it exceed the performance of a Ayre CX-7emp2, or the Ayon-CD-07???

Let me backtrack from member Lewn's comment. I don't foresee buying more LP's. One, I don't want to track down used record huts with vinyl of dubious quality There only two such huts in Honolulu where I live.
Second, New LPs are expensive, especially if you buy from Music Direct or Acoustic Sounds. Even some of the speciality analog remasters of classic 60's rock sold direct on the internet can cost an arm and a leg. I never was totally sold on this so-called "Vinyl Renaissance" that has been growing in the last 15 years. However, as you noted (which could be debated forever), the Sony 5400, or the Oppo 105 may offer me enough improvement. ( I don't understand why OPPO does not offer a simple giant killer CD player WITHOUT A FREAKIN DVD PLAYER which increases its cost of production, and its retail price

To Bigbudukks. I thought Linn no longer made CD players?? ( I will check again) The Ayre CX-7emp usually sells for $1700-2000 "used" for the current model or an upgraded version. I have read and heard more pros than cons about its performance. One caveat is....it supposedly sounds better through its unbalanced inputs. I don't have same on my Rogue integrated, and buying unbalanced to balanced adapters could cancel out the small gain by going with unbalanced inputs.

LoomisJ Good recommendation, but I was informed several times by members that using an "outboarded" DAC with the Rega Apollo would yield marginal improvements....and that was three years ago I looked at and considered a shit load of DAC from Micromega, Musical Fidelity, Rega; Sim Audio PS Audio and at least a dozen others. I say "considered" but did not try I did not want to get on the ship andtry merry go round. Shipping from Hawaii to the mainland is expensive.

Therefore, if anyone has ever used an outboarded DAC for the one in Apollo, let me know the results, but please remember I am looking to make a major upgrade in sound Thank again to all who have responded!!!